plateplate /pleɪt/ ●●● noun 1 [countable] a flat, usually round dish that you eat from or serve food on: a china plate Even Jon cleaned his plate (=ate all the food that was on his plate).2[countable] also plateful /ˈpleɪtfʊl/ the amount of food on a plate: He ate a plate of scrambled eggs and toast at breakfast.3[countable] a flat piece of metal, glass, bone, etc.: A brass plate on the door had the director’s name on it.4gold/silver etc. plate [uncountable] ordinary metal with a thin covering of gold, silver, etc.5[countable] informal a license plate: The car had New Jersey plates.6[singular] the place where the person hitting the ball stands in the sport of baseball: Reid stepped up to the plate, swung, and hit the ball.7[countable] a thin piece of plastic with false teeth in it